Which keyword you have to promote in your site?
--The one which will give you more customers for your site.
For Example, I have to promote "electronic accessories" if you have electronic accessories shop in your local area or region?
You must have a few artificiality according to your business and your budget.You'll never be #1 for "electronic accessories" in Google,because of big companies with big budgets,workers and time online which always will be in better places.
But you will be the best of your local area with a little budget if you know what is your best keyword.
The keywords will have the following features: